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Mitel Knowledge Corporation

USPTO Granted Patents = 46

% Expired Patents = 4.3

CIPO Patents = 17

Forward Citations = 1,125

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67 inventors (with patents filed for the assignee):

Thomas A Gray (4 out of 57 patents)

Debbie Pinard (4 out of 14 patents)

Peter Mathieson Craig (4 out of 5 patents)

4. Anders Fahrendorff (3 out of 260 patents)

5. Dieter Schulz (3 out of 28 patents)

6. Paul Andrew Erb (3 out of 30 patents)

7. Philippe Moquin (3 out of 21 patents)

8. Julia Turner (3 out of 3 patents)

9. Sonya G Fullarton (3 out of 12 patents)

10. Jodie Fletcher (3 out of 5 patents)

11. Scott Richard Burton (2 out of 5 patents)

12. Mirjana Popovic (2 out of 17 patents)

13. Stephane Dedieu (2 out of 13 patents)

14. Tonis Kasvand (2 out of 4 patents)

15. Christopher Graham Lucas (2 out of 2 patents)

Core Competencies:

IP Device Registration

Echo Cancellation

Audio Conferencing

Telephony Features

Speech Recognition

Power Supply

Call Redirection

Data Mining

Handwriting Recognition

Telephone Systems

Microphone Gasket

Communication System

46 patents: Sort by Forward Citations

1. 7298708 - IP device registration (2007-11-20),

2. 7292685 - Pro-active features for telephony (2007-11-06),

3. 7197139 - Replaceable personal digital assistant cradle for a telephone (2007-03-27),

4. 7187765 - Method of capturing constant echo path information in a full duplex speakerphone using default coefficients (2007-03-06),

5. 7062005 - Master slave frame lock method (2006-06-13),

6. 7035420 - Microphone gasket with integrated acoustic resistance (2006-04-25),

7. 7030733 - Power supply for phantom-feed LAN connected device using spare-pair powering (2006-04-18),

8. 7024184 - Call redirection zones for wireless communications (2006-04-04),

9. 6990193 - Method of acoustic echo cancellation in full-duplex hands free audio conferencing with spatial directivity (2006-01-24),

10. 6956830 - Line echo cancellation system (2005-10-18),

11. 6941178 - Remote programming of serialized semiconductor devices using web or internet protocols (2005-09-06),

12. 6931533 - Removable hardware device authentication system and method (2005-08-16),

13. 6931491 - Hardware-assisted tuple space (2005-08-16),

14. 6831965 - Method and apparatus for testing telephone lines (2004-12-14),

15. 6819665 - Private branch exchange implemented using H.323 gatekeeper (2004-11-16),

Company Overview

Mitel Knowledge Corporation is a prominent player in the telecommunication sector, specializing in advanced communication systems and solutions. The company focuses on technologies such as acoustic echo cancellation, voice recognition, and audio conferencing, enhancing user experiences in various communication environments. With a strong emphasis on data mining and personal digital assistants, Mitel aims to innovate and streamline communication processes, catering to diverse market needs from its headquarters in Canada.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

46 Patents

#6 in

#304 in Canada

#15,122 in the World

Mitel Knowledge Corporation

Forward Citations = 1,125

67 inventors:

Thomas A Gray (4 out of 57 patents)

Debbie Pinard (4 out of 14 patents)

Peter Mathieson Craig (4 out of 5 patents)

4. Anders Fahrendorff (3 out of 260 patents)

5. Dieter Schulz (3 out of 28 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Mitel Knowledge Corporation. Retrieved from https://idiyas.com/company/mitel-knowledge

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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